研究期間：10108~10207;A proton exchange membrane fuel cell (PEMFC) for transportation applications have attracted much interest because of they have greater fuel efficiency and lower environmental impact than conventional internal combustion engines. Pure hydrogen is a superior feed for PEMFC, but the supply and the storage of hydrogen raise mechanical and safety problems. Hence, the on-board production of hydrogen from liquid organics appears to be a practical option. Methanol is the most appealing on-board hydrogen source because it is safe to handle and low-cost. Methanol has a low boiling point, a high hydrogen/carbon ratio and no C–C bonding, and can therefore be reformed at a relatively low temperature, reducing the risk of coke formation during the reaction. Methanol can be converted to a hydrogen-rich stream by the steam reforming of methanol (SRM) or the oxidative steam reforming of methanol (OSRM). Both SRM and OSRM yield the high theoretical hydrogen concentration while producing a low concentration of CO. The hydrogen production from methanol over copper-based catalysts has been extensively investigated. In the literature, the selectivity of noble metal-based catalysts in the reaction conditions of SRM was found that highly dependent on the supports. The ZnO supported Palladium effectively converted methanol to H2 and CO2 in the reaction conditions of SRM. However, the effects of noble metal on CuO/ZnO/Al2O3 catalysts in SRM and OSRM were not reported. Preliminarily, Pd and Pt were introduced to CuO/ZnO/Al2O3(30/60/10) via incipient impregnation and co-precipitation to examine their effects on OSRM. The noble metals were deposited on CuO/ZnO/Al2O3 by incipient impregnation and co-precipitation methods. A remarkable promoting effect of noble metals on the OSRM reaction was reported, and the roles of noble metals and CuO/ZnO/Al2O3 were clarified. The effects of noble metals (Pd, Pt, Ru and Rh) on the SRM and OSRM reaction over CuO/ZnO/Al2O3 catalysts will be systematically studied via co-precipitation methods and the roles of noble metals and CuO/ZnO/Al2O3 will be clarified. The synergistic effect of ZrO2 and noble metal on the SRM and OSRM over CuO/ZnO/Al2O3 catalysts will also be clarified.
